We found one dictionary that defines the word checking up:

General (1 matching dictionary)

1. checking up: Wiktionary

Phrases: checking up on, more... ▸ Words similar to checking up ▸ Usage examples for checking up ▸ Idioms related to checking up ▸ Wikipedia articles (New!) ▸ Words that often appear near checking up ▸ Rhymes of checking up ▸ Invented words related to checking up